G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 37/00 (2006.01) G01N 21/27 (2006.01) G01J 3/28 (2006.01)
Patent
CA 2111963
2111963 9303341 PCTABS00019 The system consists of light source (2), a monochrometer (4), one or more etalons or other samples (7), a detector (8) and a computer (10) to store reference spectra, provide a read out indicative of the spectrum and to change the instrument response. A transfer function is used to recharacterize the instrument's wavelength position and intensity response to match the actual spectrum with the standard spectrum. In one embodiment, the etalon (7) is used in series with the unknown sample (9). A spectrum of the unknown sample and etalon (7) is created and is extracted from the spectrum of the unknown sample (9) alone to provide the actual spectrum of the instrument response to the etalon (7) alone. The actual spectrum can then be compared to the standard spectrum and the instrument response recharacterized accordingly.
Beebe Kenneth Russell
Ruhl Harry Devere Jr.
Smart & Biggar
The Dow Chemical Company
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